In describing Oncidium floridanum, O. Ames (1924) stated that the Florida plants were distinct from O. sphacelatum Lindley but failed to recognize the affinities of the Florida plants to the Mexican and Central American O. ensatum. Several differences between the plants from Florida and a cultivated specimen of O. ensatum from Guatemala were cited by R. P. Sauleda and R. M. Adams (1989). My study of Oncidium ensatum throughout its range reveals no features consistent enough to warrant recognizing the Florida populations as a separate taxon.